S62.331 Displaced fracture of neck of second metacarpal bone, left hand

ICD-10-CM Code S62.331: Displaced fracture of neck of second metacarpal bone, left hand

ICD-10-CM code S62.331 identifies a displaced fracture of the neck of the second metacarpal bone in the left hand. Official terminology establishes this diagnostic label, and specific code variations exist for different patient encounters. Literature on metacarpal fractures notes that the palmar aspect of the metacarpal neck is a structurally weak area of the bone. 3 4 2

Plain-language overview

The official label for ICD-10-CM code S62.331 is a displaced fracture of the neck of the second metacarpal bone of the left hand. This terminology provides the specific diagnostic name for this particular injury. 3 4

What this code represents

The terminology for S62.331 explicitly denotes a displaced fracture of the neck of the second metacarpal bone in the left hand. The source materials do not provide further clinical definitions for the mechanical nature of this specific displacement. 3 4

Coding details

The ICD-10-CM 2026 release includes the codes S62.331B and S62.331D. Both of these specific codes fall under the broader S62.331 diagnostic category for a displaced fracture of the neck of the second metacarpal bone, left hand. 3 4

The official source confirms the existence of code S62.331B within the 2026 ICD-10-CM version. The provided excerpt does not define the specific encounter type or healing phase that this character extension represents. 4

The official source confirms the existence of code S62.331D within the 2026 ICD-10-CM version. The provided excerpt does not define the specific encounter type or healing phase that this character extension represents. 3

Clinical context

Literature indicates that the palmar aspect of the metacarpal neck is the weakest area of the metacarpal bone. This structural vulnerability makes it a site for comminuted fractures, though studies often focus on the second and fifth metacarpals. 2

Research reviews evaluate hand rehabilitation programs for second to fifth metacarpal fractures following surgical and conservative management. The evidence quality varies, making it difficult to draw definite conclusions on the best rehabilitation approach. 1

What the sources add

The EVS Explore sources provide the official ICD-10-CM label and code variations, while the clinical literature sources discuss metacarpal bone vulnerabilities and rehabilitation. This comparison shows a distinction between official diagnostic terminology and clinical management research. 3 4 1 2

Documentation considerations

The official code label for S62.331 specifies the left hand, the second metacarpal bone, the neck region, and the presence of a displaced fracture. These elements constitute the documented diagnostic concepts established by the source. 3 4

Sources

1. Hand rehabilitation programmes for second to fifth metacarpal fractures: A systematic literature review — pmc.ncbi.nlm.nih.gov; accessed 2026-07-26.
2. Treatment of fifth metacarpal neck fracture in adolescents with minimally invasive surgery: percutaneous Kirschner wire fixation versus elastic stable intramedullary nailing — pmc.ncbi.nlm.nih.gov; accessed 2026-07-26.
3. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-26.
4. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-26.